#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
int main()
{
	int a = 0, b = 0;
	scanf("%d %d",&a,&b);
	a = a ^ b;
	b = a ^ b;
	a = a ^ b;
	printf("a=%d,b=%d\n", a, b);

	return 0;
}